Comparison of methods for the determination of total available residual chlorine in various sample matrices /

Bibliography: p. 28-29.

Handbook for sampling and sample preservation of water and wastewater.

Mode of access: Internet.

Asbestos-containing materials in school buildings : bulk sample analysis quality assurance program : bulk sample rounds 16, 17 and 18 /

Mode of access: Internet.

Sample collector's handbook /

Mode of access: Internet.

Sample collector's handbook.

"The Handbook is presented in modular format. Modules will be punched for a standard 3-ring notebook. Modules will be sent as developed or updated."--P. 3.

Sample collector's handbook /

Cover title.